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熱間押出法によるマグネシウム合金の超ジュラルミン被覆と表面特性の評価
| Title: | 熱間押出法によるマグネシウム合金の超ジュラルミン被覆と表面特性の評価 |
| Other Titles: | Coating on Magnesium Alloy with Super Duralumin by Hot Extrusion and Evaluation of Its Surface Properties |
| Authors: | 徳永, 透子1 Browse this author →KAKEN DB | | 外本, 和嗣2 Browse this author | | 大野, 宗一3 Browse this author →KAKEN DB | | 松浦, 清隆4 Browse this author →KAKEN DB |
| Authors(alt): | Tokunaga, Toko1 | | Sotomoto, Kazushi2 | | Ohno, Munekazu3 | | Matsuura, Kiyotaka4 |
| Keywords: | magnesium alloy | | A2024 aluminum alloy | | coating extrusion | | aging treatment | | hardness | | corrosion resistance |
| Issue Date: | 1-Aug-2017 |
| Publisher: | 日本金属学会 |
| Journal Title: | 日本金属学会誌 |
| Journal Title(alt): | Journal of the Japan Institute of Metals |
| Volume: | 81 |
| Issue: | 8 |
| Start Page: | 389 |
| End Page: | 393 |
| Publisher DOI: | 10.2320/jinstmet.J2017019 |
| Abstract: | The poor corrosion resistance of Mg alloys, which is well known as one of the lightest structural metal materials, limits a wide use of these alloys. In order to dramatically increase not only the corrosion resistance but also the surface hardness of Mg alloys (AZ80), coating with A2024 Al alloy by hot extrusion has been attempted in this study. The coating was successfully realized by hot extrusion of a Mg alloy (AZ80) billet together with an Al alloy plate placed between the billet and the extrusion die. The A2024 Al alloy-coated Mg alloy exhibited an excellent corrosion resistance and no weight loss was observed after immersion in a 5 mass% HCl aqueous solution for 10 min while a weight loss of about 1500 g・m-2 was observed in case of AZ80 Mg alloy without coating under the same condition. The surface hardness of the coated alloy was increased to about 85 HV by aging for 144 h at room temperature after solution treatment for 3 h at 673 K |
| Type: | article |
| URI: | http://hdl.handle.net/2115/75372 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 大野 宗一
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